JPH11251708A - Device having printed board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost of a device, by reducing the space and number of parts and shortening the assembling time of the device and, at the same time, to firmly fix and hold connecting parts. SOLUTION: A device is provided with a substrate to be connected 2 having first and second sections to be connected 2e1 and 2e2, a first flexible printed board 3 having a first connecting section 3e which can be brought into contact with the first section to be connected 2e1 a second flexible printed board 4 having a second connecting section 4e which can be brought into contact with the second section to be connected 2e2, and a notched section 4f through which the first flexible printed board 3 can be passed. and a pressing member 6 which press-contacts the first and second connecting sections 3e and 4e and notched section 4f with the substrate to be connected 2. When the first flexible printed board 3 is passed through the notched section 4f, the pressing member 6 press- contacts the first and second connecting sections 3e and 4e and notched section 4f with the substrate to be connected 2, in a state where the first and second connecting sections 3e and 4e are respectively in contact with the sections to be connected 2e1 and 2e2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an apparatus having a printed circuit board such as a camera.

[0002]

2. Description of the Related Art Conventionally, a control board 2 having a control circuit
When electrically connecting the flexible printed circuit board 2 to the flexible printed circuit board 33, a so-called press contact method is often used as shown in FIG.

That is, in FIG. 6, by inserting the guide bosses 1a and 1b into each other, the positions of the pattern exposed portions on the opposing surfaces are brought into alignment contact. Thereafter, an elastic member 5 such as rubber is laid on the flexible printed board 32, and then a holding member 6 is laid thereon.
Finally, it is fixed with screws 7c and 7d, and is electrically connected by the pressure of the elastic member 5. At this time, when pressing one flexible printed board 32 against the control board 32, the guide bosses 1a and 1b, the elastic member 5, the pressing member 6,
And 7c and 7d screws, respectively. That is, if there are three connection points, three sets of the guide bosses 1a and 1b, the elastic member 5, the pressing member 6, and the 7c and 7d screws are required.

[0004]

Conventionally, when a plurality of flexible printed boards are pressed against one control board, guide bosses 1a and 1b, an elastic member 5, a pressing member 6, and the like are required. Therefore, when there are a plurality of connection points, there is a problem in that a space required for connection increases. In addition, there is a problem that the number of parts and the assembling time are increased, resulting in an increase in cost.

The present invention has been made in view of the above problems, and has as its object to save space, reduce costs by reducing the number of parts and assembling time, and to firmly fix and hold a connection portion. .

[0006]

According to a first aspect of the present invention, there is provided a connection substrate (2) having a first connection portion (2e1) and a second connection portion (2e2). A first flexible printed circuit board (3) having a first connection part (3e) that can contact the first connection part (2e1), and a second connection part (4e) that can contact the second connection part (2e2). And the first
A second flexible printed board (4) having a notch (4f) through which the flexible printed board (3) can pass; a first connection part (3e), a second connection part (4e), and a notch (4f); ) Is provided with a pressing member (6) that presses against the substrate to be connected (2), and the first flexible printed circuit board (3) passes through the notch (4f) to form the first connecting portion (3e). Is in contact with the first connected portion (2e1), and the second connected portion (4e) is in contact with the second connected portion (2e1).
e2), the holding member (6) is connected to the first connection part (3e), the second connection part (4e) and the notch part (4).
An apparatus having a printed board, wherein f) is pressed against the board to be connected (2).

According to a second aspect of the present invention, in the first aspect, a second notch (3f) through which the second flexible printed board (4) can pass is provided in the first flexible printed board (3). (4) passes through the second notch (3f), and the first flexible printed circuit board (3) passes through the notch (4f).
The connection part (3e) comes into contact with the first connected part (2e1), and the second connection part (4e) comes into contact with the second connected part (2e2).

According to a third aspect of the present invention, in the first or second aspect, the first connected portion (2e1) and the second connected portion (2e1).
2) a connected substrate (2) having a third connected portion (2e3) and a third flexible printed board (8) having a third connected portion (8e) capable of contacting the third connected portion (2e3); And a third flexible printed circuit board (8)
Are provided on the first flexible printed circuit board (3) and the second flexible printed circuit board (4), and the third flexible printed circuit board (8) is provided with the third notched section. (3g, 4g), the first connection part (3e) becomes the first connected part (2e1).
And the second connecting portion (4e) is in contact with the second connected portion (2e).
2), and the third connecting portion (8e) is in contact with the third connected portion (2).
e3).

According to a fourth aspect of the present invention, in the third aspect, the fourth notch (8g) through which the first flexible printed board (3) and the second flexible printed board (4) can pass is formed by the third flexible printed board (8). ), The first flexible printed circuit board (3) passes through the notch (4f), the second flexible printed circuit board (4) passes through the second notch (3f), and the first flexible printed circuit board (3). 3) and the second flexible printed circuit board (4) pass through the fourth notch (8g), so that the first connecting portion (3e) comes into contact with the first connected portion (2e1) and the second connecting portion. (4e) is in contact with the second connected portion (2e2), and the third connected portion (8e) is in contact with the third connected portion (2e3).

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a first embodiment of an apparatus having a printed circuit board according to the present invention.

In FIG. 1, a main body 1 such as a camera body is shown.
Are guide bosses 1a and 1b and screws 7c and 7d
Holes 1c and 1d for retaining the holes. The control board 2 has a control circuit thereon, and has pattern exposure portions 2e1-2e2.
And the flexible printed circuit boards 3 and 4 are connected to an external circuit. The control board 2 includes the pattern exposed portions 2e1-2e2 and the flexible printed boards 3 and 4.
And guide holes 2a and 2b,
It has screw escape holes 2c and 2d.

The flexible printed circuit board 3 has guide holes 3a and 3b and escape holes 3c and 3d for screws. A cutout portion 3f is formed substantially at the center of the flexible printed board 3, and a pattern exposed portion 3e is formed on the right back surface of the cutout portion 3f. Pattern exposure part 3e
Contacts the pattern exposed portion 2e1 of the control board 2. Similarly, the flexible printed circuit board 4 has guide holes 4a and 4b and escape holes 4c and 4d for screws.
A notch 4f is formed substantially at the center of the flexible printed circuit board 4, and a pattern exposed portion 4e is formed on the left back surface of the notch 4f. The pattern exposure part 4e contacts the pattern exposure part 2e2 of the control board 2. Note that the direction of the notch 3f (the lower left direction) and the direction of the notch 4f (the upper right direction) are opposite to each other.

The rubber member 5 is an elastic member for pressing the flexible printed boards 3 and 4, and has guide holes 5a and 5b and screw escape holes 5c and 5d. The holding member 6 is fixed to the main body 1 by screws 7c and 7d while holding the flexible printed boards 3 and 4 and the rubber member 5. The holding member 6 has guide holes 6a and 6b for that purpose and escape holes 6c and 6d for screws.
And

As shown in FIG. 2, the control board 2 has guide holes 2a and 2b provided with guide bosses 1a and 1
b, and is positioned and fixed. When the flexible printed board 3 passes through the notch 4f, the pattern exposed portions 3e and 4e face the pattern exposed portions 2e1-2e2 of the control board 2. The guide holes 3a and 4a are fitted into the guide boss 1a of the main body 1, the guide holes 3b and 4b are fitted into the guide boss 1b of the main body 1, and the pattern exposed portions 2e1-2e2 of the control board 2
The positions of the flexible printed boards 3 and 4 with respect to the pattern exposed portions 3e and 4e can be determined. At this time, in the present embodiment, the guide holes 3b and 4a far from the pattern exposure portions 3e and 4e are formed as long holes to facilitate assembly.

Thereafter, the guide holes 5a and 5b of the rubber member 5 and the guide holes 6a and 6b of the holding member 6 are fitted into the guide bosses 1a and 1b of the main body 1, whereby
Positioned and fixed. Further, the control board 2, the flexible printed boards 3 and 4, and the rubber member 5 are sandwiched between the main body 1 and the holding member 6 with screws 7c and 7d.
, The pattern exposed portions 2e1-2e2 of the control board 2 and the pattern exposed portions 3e and 4e of the flexible printed boards 3 and 4 are formed by the elastic force of the rubber member 5.
Are in surface contact and are electrically connected. This completes the connection (connection) by so-called pressure welding (FIG. 3).
reference).

At this time, the flexible printed circuit board 4 exists on the pattern exposed portion 3e of the flexible printed circuit board 3, and the flexible printed circuit board 3 exists on the pattern exposed portion 4e of the flexible printed circuit board 4. That is, they overlap and intersect at the notches 3f and 4f. As a result, the thicknesses of the flexible printed boards 3 and 4 become uniform, and the pattern exposed portions 2e are formed.
A uniform force will be applied to 1-2e2, 3e, and 4e. As a result, it is possible to prevent a press-contact failure such as only a specific pattern being electrically connected.

FIG. 4 is a perspective view showing a second embodiment of the present invention. As shown in FIG. 4, the pattern exposure portions 2e1-2e2 of the control board 2 and the flexible printed boards 3 and 4,
The positions of the pattern exposure portions 2e1-2e2, 3e, and 4e are determined by fitting 3e and 4e on the same surface and fitting them into the guide bosses 1a and 1b of the main body 1 as in the first embodiment. Then, the pattern exposed portions 2e1
By connecting 2e2, 3e, and 4e with solder, electrical connection can be achieved. Thereby, the connection (connection) by the so-called solder bridge is completed.

In the configuration of FIG. 4, the connection by the solder bridge is adopted, so that the configuration corresponding to the rubber member 5, the holding member 6, the screws 7b and 7d in FIG. 1 is not required.

FIG. 5 is a perspective view showing a third embodiment of the apparatus having a printed circuit board according to the present invention.

In the first and second embodiments, the number of connection points is two. In the third embodiment, three connection points are used.
A case is described.

That is, the notches 3g and 4g through which the flexible printed board 8 can pass are provided in the flexible printed boards 31 and 41, and the flexible printed board 8 passes through the notches 31g and 41g. A notch 8g through which the flexible printed board 31 and the flexible printed board 41 can pass is provided in the flexible printed board 8, and the flexible printed board 31 and the flexible printed board 41 pass through the notch 8g. Thereby, the pattern exposure part 31e contacts the pattern exposure part 2e1,
The pattern exposed portion 41e contacts the pattern exposed portion 2e2, and the pattern exposed portion 8e contacts the pattern exposed portion 2e3.

Thereafter, the guide holes 5a and 5b of the rubber member 5 and the guide holes 6a and 6b of the pressing member 6 are fitted into the guide bosses 1a and 1b of the main body 1, whereby
Positioned and fixed. Further, between the main body 1 and the holding member 6, the control board 2, the flexible printed boards 31, 4
1 and 8, when the rubber member 5 is sandwiched, the screws 7c and 7d are tightened, and the elastic force of the rubber member 5 causes the pattern exposed portions 2e1, 2e2 and 2e
3, and the pattern exposed portions 31e, 41e, and 8e of the flexible printed boards 31, 41, and 8 are in surface contact and are electrically connected. Thereby, the connection (connection) by so-called press contact is completed.

At this time, the flexible printed circuit board 3
1, 41 and 8 intersect and overlap, so that the thickness of the flexible printed circuit boards 31, 41 and 8 becomes uniform, and the pattern exposed portions 2e1, 2e2 and 2e3
And 31e, 41e, and 8e are subjected to a uniform force. As a result, it is possible to prevent a press-contact failure such as only a specific pattern being electrically connected.

Although the present invention has been described with reference to the embodiment, various modifications are possible in accordance with the technical concept of the present invention. For example, in the above-described embodiment, the control board 2
Notches 3f and 4f are provided on the sides of the flexible printed circuit boards 3 and 4 which are pressed against, but the technical idea of the present invention is not limited to this.

For example, referring to the configuration of FIG. 1, without providing the notches 3f and 4f in the flexible printed circuit boards 3 and 4, the pattern exposure part 2e1 connected to the pattern exposure part 3e and the pattern exposure part 4e are connected to the pattern exposure part 4e. A cut may be made in the control board 2 in the middle of the pattern exposed portion 2e2. In this configuration,
Pattern exposure part 2e1 connected to pattern exposure part 3e
Are assembled between the control board 2 and the flexible printed board 3, and the pattern exposed part 2 e 2 connected to the pattern exposed part 4 e is sandwiched between the flexible printed board 3 and the flexible printed board 4.
With such a configuration, it is possible to obtain the same effects as those of the above-described first to third embodiments.

[0027]

As described above, according to the apparatus having the printed circuit board of the present invention, the holding member (6) includes the first connecting portion (3e) and the second connecting portion including the notch (4f). (4
Since e) is pressed against the connected substrate (2), it can be firmly fixed and held.

Further, since a plurality of flexible printed circuit boards can be pressed by a set of members such as a guide boss, a rubber member, and a pressing member for pressing, the cost can be reduced. Further, when a guide hole and a screw hole are used to press-contact a plurality of flexible printed circuit boards, the guide hole and the screw hole can be provided at two common locations, so that space can be saved. Furthermore, since a plurality of flexible printed circuit boards can be stacked and assembled at one time, assembly can be facilitated and cost can be reduced by reducing assembly time.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of an apparatus having a printed circuit board according to the present invention.

FIG. 2 is a perspective view showing one embodiment of an apparatus having a printed circuit board according to the present invention.

FIG. 3 is a perspective view showing an embodiment of an apparatus having a printed circuit board according to the present invention.

FIG. 4 is a perspective view showing one embodiment of an apparatus having a printed circuit board according to the present invention.

FIG. 5 is a perspective view showing one embodiment of an apparatus having a printed circuit board according to the present invention.

FIG. 6 is a perspective view showing an example of an apparatus having a conventional printed circuit board.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 1a Guide boss 1b Guide boss 2 Control board 2a Guide hole 2b Guide hole 2e1 Pattern exposure part 2e2 Pattern exposure part 2e3 Pattern exposure part 3 Flexible printed circuit board 3a Guide hole 3b Guide hole 3c Escape hole 3d Escape hole 3e Pattern exposure part 3f Notch 3g Notch 4 Flexible printed board 4a Guide hole 4e Pattern exposed part 4f Notch 4g Notch 5 Rubber member (elastic member) 5a Guide hole 6 Holding member 6a Guide hole 7c Screw 8 Flexible printed board 8e Pattern Exposed portion 8g Notch 31 Flexible printed circuit board 31a Guide hole 31b Guide hole 31c Escape hole 31d Escape hole 31e Pattern exposed portion 31f Notch 31g Notch 41 Flexible printed circuit board 41a Guide hole 1e pattern exposed portion 41f cutout portion 41g cutout portion

Claims (4)

[Claims] A first connection portion having a first connection portion and a second connection portion, and a first connection portion having a first connection portion capable of contacting the first connection portion.
A flexible printed circuit board; a second connection portion capable of contacting the second connected portion;
A second flexible printed circuit board having a notch portion through which the flexible printed circuit board can pass; and a pressing member for pressing the first connection portion, the second connection portion, and the notch portion against the connected substrate. When the first flexible printed circuit board passes through the notch, the first connection portion comes into contact with the first connection portion, and the second connection portion comes into contact with the second connection portion. An apparatus having a printed circuit board, wherein the pressing member presses the first connection portion, the second connection portion, and the cutout portion against the connection target substrate in a state. A second notch portion through which the second flexible printed circuit board can pass is provided in the first flexible printed circuit board; the second flexible printed circuit board passes through the second notch portion; When the flexible printed circuit board passes through the notch, the first connection portion contacts the first connection portion, and the second connection portion contacts the second connection portion. An apparatus having the printed circuit board according to claim 1. 3. A connection substrate having a first connection portion, a second connection portion, and a third connection portion, and a third connection portion having a third connection portion capable of contacting the third connection portion.
A flexible printed circuit board, wherein a third cutout portion through which the third flexible printed circuit board can pass is provided in the first flexible printed circuit board and the second flexible printed circuit board; By passing through the notch, the first connection portion comes into contact with the first connection portion, the second connection portion comes into contact with the second connection portion, and the third connection portion comes into contact with the third connection portion. The device having a printed circuit board according to claim 1, wherein the device is in contact with a connection portion. 4. A fourth cutout portion through which the first flexible printed board and the second flexible printed board can pass is provided in the third flexible printed board, and the first flexible printed board passes through the cutout portion. Then, the second flexible printed board passes through the second notch, and the first flexible printed board and the second flexible printed board pass through the fourth notch, whereby the first connection portion is formed. Is the first
4. The print according to claim 3, wherein the second connection portion contacts the second connection portion, and the third connection portion contacts the third connection portion, wherein the second connection portion contacts the second connection portion. 5. An apparatus having a substrate.